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PORTABLE NAIL DRIVING MAGHINEJ No. 279,427. Patented June 12,1883.

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S.PERRY. PORTABLE NAIL DRIVING MACHINE.

No. 279,427. Patented June 12,1883

W/T/VESSES INVENTOR Jaw @uM (No Model.) I 5 Sheets-Sheet 3. S. PERRY. PORTABLBNAIL DRIVING MACHINE.

Patented June 12,1883;

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(No Model.) 5 Sheets-Sheet 4.

I S. PERRY.

PORTABLE NAIL DRIVING MACHINE.

Patented June 12,1883

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, s. PERRY. PORTABLE NAIL DRIVING MACHINE.

Patented June 12,1883.

N. PETERS PhulwLMlognpher, Washington. D4 (1 UNITED STATES PATENT OFFICE.

STUART PERRY, OF NEVPORT, NEV YORK.

PORTABLE NAIL- DF HVING MACHINE.

SPECIFICATION forming part of Letters Patent Application filed April 17. 1382.

To all whom) it may concern Be it known that I, STUART PERRY, of Newport, in the county of Herki'mer and State of New York, have invented certain new and useful Improvements in Devices for Lathing; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it pertains to make and use the same.

My invention relates to an improvement in devices to be employed in lathing, the object being to facilitate the nailing of laths to studs, joists, or other frame-work.

\Vith this end in view, my invention consists in devices for arranging nails in serial order in portable magazines in a nail-driver, into which the magazines are interchangeably inserted and discharged, and which is adapted to be controlled by the hand when being operated, and in other auxiliary devices designed to be used in conjunction with the nail-driver.

In the accompanying drawings, Figure]. is a view in perspective of my improved device for arranging nails in serial order, aportion of the deflector being broken away to show the manner in which. the magazines are grouped and supported while being charged. Fig. 2 is a view in vertical longitudinal section of the devices shown in Fig. 1. I Fig. 3 is a view in perspective of a nail-scoop employed in connectionwith the devices shown in Figs. 1. and 2. Fig. 4 is a perspective of one of the magazines provided with devices for feeding the nails, said devices being attached to the magazine after it is charged. Fig. 5 is a view in vertical longitudinal section of the devices shown in Fig. 4. Fig. 6 is a view in side elevation of the nail-driver with a magazine in position therein. Fig. 7 is a view in vertical cross-section of the head of the nail-driver. Fig. 8 is a view thereof in horizontal cross section, taken through the upper wall of the chamber, which includes the devices for successively separating the foremost nail of the series in the magazine and presenting it to the action of the driver. Fig. 9 is a view in perspective of the separator. Fig. 10 is a view in vertical section of a device designed to facilitate the execution of overhead work. Fig. 11 is a perspective view of another device for the same purpose. Figs. 12 and 13 are views in side elevation of the opposite sides of a pieces of sheet metal, the upper edges of which No. 279,427, dated June 12, 1883.

(No model.)

modification of my improved nail-driver, a magazine being located therein. Fig. leti s a view in vertical eross-secti on of the head of the driver, the shell thereof being represented in its normal adjustment. Fig. 15 is a similar view, showing the shell in the adjustment due to it at the completion of the operation of driving a nail, the said view being taken through line 0c at of Fig. 12. Fig. 16 is a view in longitudinal cross ection of the head of the naildriver; and Fig. 1.7 is an enlarged view, in perspective, of the separator, which constitutes an element thereof.

A represents a case or tray provided with fingers B, between which the opposite ends of the magazines 0 are received. A similar case or defiector, D, adapted to be secured to the case A, is provided with a series of cross-bars, l l,-thc upper faces of which are provided with two bevels inclining in opposite directions, the said cross-bars being appropriately arranged so that when the case I) is mounted upon the case A, as aforesaid, the beveled bars will deflect the nails, which are thrown in a mass into the case D, into the open tops ofthe magazines; and inasmuch as the tops of the magazine are broad enough only to receive the points and shanks of the nails they will be suspended in serial order in them by their heads, as shown in Figs. 2 and 5 of the drawings.

The scoop F is designed to be used in removing the nails remaining in the deflector D after the magazines are charged, and also to be employed in moving the nails from place to place in the said case D to facilitate their distribution into the magazines.

The charging devices above described are not claimed in this application, having been made the subject-matter of another applica tion.

Referring to the particular construction of the magazines (7, they are formed of parallel are provided with outwardly-extending flanges G, the bottoms of the magazines being open to permit the escape of foreign substances and headless nails. The rear ends of the magazines are closed by plates H, while their outer or forward ends are left open to permit the nails to be fed outto the nail-driver, the said outer ends of the magazines being stiffened bythe metallic stirrups I.

In order to retain the rear ends of the 1nagazines within the handle J of the nail-driver, the plates H are provided with lugs K, which engage with a spring, L, secured within the rear end of the said handle. Many other devices may, however, be employed to'fulfill the functions of the lugs and spring without vio lating the spirit of my invention.

After the magazines are cl'iarged, and before they are inserted in the handle of the nail-driver, nail-feeding devices are secured to them. These devices consist of a cap, M, provided with stiffening-flanges 0, having lugs N formed on their under faces to elevate them su'l'n'ciently above the bearing-flanges G of the magazines to prevent any interference with the heads of the nails which are moved over said bearingflanges, the same being clasped.

on each side by the stirrup-shaped springs P. The feeding devices also embrace the toothbar Q, arranged to have lateral movement within the cap M, and also to be raised therein, the said bar being carried forward by a spring, 1%, which is secured to the forward portion of the cap M, and to the rear end of the oscillat ing rod S, the rear end of the said rod being also attached, by means of an upright bar, T, which eXtends through a slot, U, formed in the top of the cap M, to the bar Q. The rod S is attached to the feeding device by means of a clasp, V, which embraces the flanged top thereof, and which constitutes not only means of attaching the rod to the feeding device, but also a sliding fulcrum for the .rod.

Two small springs, I), located within the cap M and above the toothed bar Q, fulfill the function of bearing the same down upon the heads of the nails in the magazine. \Vhen the nails in front of the foremost tooth of the said bar are exhausted, the forward end of the rod S is depressed, effecting the elevation of the bar Q, above the heads of the remaining nails. The bar may now be pushed toward the rear of the magazine without interfering with the nails, and when it has been brought to the desired point the outer end of the rod S is released. The springs b will now restore the parts to their normal positions and engage the foremost tooth of the bar with more nails, which. it will feed forward, as above described. In this manner every successive rearward movement imparted to the bar will operate to engage the teeth thereof with new groups of nails so long as any nails remain in the magazines and in the rear of the teeth. It will thus be observed that the nails have an intermittent and progressive movement forward in groups, the last group being eventually brought in front of the foremosttooth of the thereto, which is employed in connection with it in executing overhead work', the adaptation of the arch to fulfill this last-named function consisting in a sleeve, X, into which aspringpressed dog, \V", projects, the same being engaged with a slot, Z, formed in the upper ends of the rod A, to be described farther on.

The rear end of the handle J is cut away on each side, as at C, to enable the rear end of the magazine to be readily grasped for the purpose of withdrawing it, while its forward endis provided with two sets of lugs, D, or equivalent devices, which impinge against the opposite faces of the stirrup I to hold the forward endof the magazine in position.

The rear face of the head of thenail-driver is provided with a vertical, slot, E, to receive the shanks of the nails, with a horizontal slot, F, to receive the heads of the nails, andwith a narrow slot, G, into which the outer end of the toothed bar Q, projects. A spur, H, located in the bottom of the slot E, enters the lower portion of the forward end of the maga zine-chamber and prevents the magazine from vertical movement. 7 All of the slots above re ferred to open into the chamber l. The inner wall of the said chamber 1 is. provided with a horizontal ledge, J, having an inclined upper face, the ledge being relatively so arranged with regard to the horizontal slot F that the head of every nail as it leaves the said slot F will be deflected by its inclined face in. such manner that its lower end -or point will be thrown forward.

A separator, K, interposed between the inclined face of the ledge J and the upper wall of the chamber 1, is designed to be laterally recip'rocated and to interrupt communication between the said chamber 1 and the slot E at certain times, lugs L, depending from the upper wall of the chamber, preventing the said separator from being displaced. The separator is provided with the slot' M, which. registers with the slot F of the head of the driver, with a slot, N, which registers with the upper end of the slot E, with a spur, O, which extends across the upper end of the slot E during one phase of the nail-drivefis operation, with a depending arm, P, whi'ch'engages with one of the interlocking jaws Q, to move the separator, and with an inclined face, R, which permits the heads of the nails to be deflected when their outer ends are thrown forward, as before set forth.

The interlocking jaws, of which there are two, are secured in position between the upper and lower walls of the chamber 1 by means of pivots S, which are retained in position by the plate T. A spring-clamp, T embracing both jaws, exerts a constant tendency to interlock them, which it effects when the driver U is in its elevated position. The contour of the inner edges, V, of the said jaws adapts them, after having separated or seized the foremost nail of the line, to'draw it inward and under the driver U, while their curved outer faces, \V, by closing the slot E, prevent the ingress of another nail into the chamber I until the one held by the jaws is driven. \Vhen the jaws are forced apart'by thedescent of the driver U, the one in engagement with the depending arm P of the separator will move it laterally and cause its spur O to extend across the slot E, and thus prevent the foremost nail of the line from entering the chamber I any farther than is necessary for it to fall within the range of the jaws, which will clasp it and draw it inward as soon as the driver is restoredby the spring X, inelosed in it, to its normally-elevated position, and the spring-clamp is permitted to interlock the jaws. As soon as this is effected their outer faces will oppose the ingress of any nails into the chamber I, and the spur of the separator, being thus superseded, is removed from before the slot E by the action of the spring Y, which immediately acts to restore the separator to its normal position, in which its slot N registers with the slot E, as aforesaid. The interlocking jaws Q clasp the shanks of the nails at apoint a little below their heads, and therefore if no provision is made for throwing the shanksof the nails forward they might be so retarded or deflected as to escape the action of the jaws altogether. Again, by separating the shanks of the nails by throwing the foremost nail forward the jaws are prevented from separating two nails from the line instead of one, which might result if the heads of. two nails were so interlocked as to bring their shanks very close together.

From the above the object of throwing the shank of the foremost nail forward by means. of the inclined face of the ledge J will be apparent.

The driver U, which is mounted in the sleeve Z, incloses a spring, X, which operates to maintain it in its normal position of elevation above the jaws Q, the lower end of the driver being slightly wedgeshaped to enable it to readily separate the jaws Q when it is forced down by the blow of the hammer on its head, this being the manner of operating it.

A nailguide, A located below the lower wall of the chamber I, and pivotally secured to the front of the head of the nail-driver, is designed to receive the shanks of the nails and to guide them as they are forced out of the driver-head. It consists of a plate provided on its inner face with an open vertical slot, B

of sufficient size to receive the shanks of the nails. A spring, 0, or other equivalent device, attached to the pivot D by which the guide is pivotally secured to the driver-head, holds it in a normal position. of readiness to receive the shanks of the' nails. lVhen the driver U descends, it engages with the upper face of this guide and swings it into the position in which it is represented by the dotted lines in the drawings. A buffer, E", of rubher or other yielding substance, is provided, to prevent the guide from becoming damaged by violently striking the outer edge of the lower wall of the chamber I. In virtue of the office performed by this guide, the nails are invariably driven in vertical position, or, as commonly stated, true.

Plates F", secured to the opposite side faces of the driver-head, are provided with outwardly-extending flanges G9, which increase the area of the face of the driver-head; but they may be dispensed with, if desired.

Inasmuch as the description of the mechani cal construction of my improved nail-driver has been very freely interspersed with descriptions of the mode of its operation, the same will not be further adverted to.

B in Fig. 10 of the drawings represents an auxiliary device for facilitatingthe execution of overhead work with my improved nail driver. It consists of a tube, H'-, the upper end of which is adapted to fit over the sleeve Z of the driver-head, the said tube inclosing a plunger, I, which is projected by the spring J against the driver U, to operate it in driw ing a nail, the said spring being supported by a disk, a, resting upon a ferrule, K, encircling the inner wall ofthe tube. A sleeve, L adapted to be moved on the tube H is provided with a spring-arm, M the upper end of which extends into the interior of the tube through an elongated slot, N formed therein, and engages with the upper face of the plunger I. In operating the device to project the said plunger against the driver U, the sleeve L is grasped by the hand and pulled down until the said arm is released from engagement with the' plunger by the engagement of its inclined inner face, 0*, with the shoulder P of the disengaging-arm Q", the lower extremity of which is attached to a sleeve, RF, which embraces the foot S ofthe device, and which is provided with a springdog, T adapted to engage with projections U formed in said foot, to enable the arm Q? and its shoulder R to be raised or lowered to determine the point at which the arm M shall release the plunger, such. point being determined by the force with which it is desired to project the plunger against the head of the driver U, the force being directly proportional to the compression of the spring, and

therefore in increasing or decreasing the pro j ectile force of the plunger the shoulder R is lowered or raised, respectively. The foot S which is inserted into the lower end of tube H extends beyond the ferrule K therein, its extreme end being engaged with the disk (1, upon which the spring J is supported. The tube II is adapted to be telescoped over this foot in orderto accommodate the device to the IIO distance through which it is operated, which The spur-wheel E", attached one side of the may vary through inequalities inthe staging upon which the operator of the device stands. WVith this end' inview, the spring T" is interposed between the lower face of the ferrule K and a shoulder, U, formed on the foot S", to which-a pin, V", extending through the slot W, formed in the lower end of the tube H, is at tached, said pin operating to hold the foot Si within thetube. Therefore, if desired to shorten the device, the lower end of the tube H is grasped by the hand and pulled down against the force of the spring T, by which it will be restored when released by the hand, to its normal position.

In, operating the nail-driver by the device above described, the sleeve thereof is engaged with the upper end of the tube 11", the lower end of which the workman clasps with one hand, while he employs the other hand to reciprocate the sleeve to continuously depress the spring and project the plunger against the driver of the nail-driving device, which is held in contact with the ceiling, the foot S of the auxiliary controlling device being moved over the staging by the workman, who pushes it with his foot. Another device employed in assisting the workman in overhead work is shown. in Fig. 11 of the drawings. It consists of a red, A, the upper end of which is adapted to be inserted within the sleeve X of the handle of the driver, in. which it is retained by the engagement of the springpressed dog XV thereof with a slot, Z, formed inv its upper end. The lower end of the rod Ais provided with asocketflV", inclosing aspiring, X which forms a resilient support for the said end of the rod. As the rod is depressed and forced into the socket it is guided by a pin, Y-, which reciprocates in an elongated slot, Z formed therein. A handle, A, secured to the rod, is designed to enable it to be readily manipulated. Vhen this form of auxiliary controlling device is employed in connection with the nail driver, the same is secured to its upper end, its lower end being inserted in one of a number of suit able sockets formed in a harness worn by the operator. The handle A is grasped by one hand to hold the nail-driver against the ceiling, while with the other hand the workman holds a hammer which he employs to strike the head of the driver U.

Variations in the height of the staging, by which the distance from the workman to the ceiling is increased or diminished, are compen sated for by an increase or relaxation of pressure on the spring X by which the red A is either forced into or out of the socket \V within the scope offered by the length of the slot Z. By means of these auxiliary devices for controlling the nail-driver, wh en employedin the execution of overhead work, the muscles are relieved of those fatiguing motions which they must perform in holding the driver to the ceiling, the work of the muscles in this manner being, however, far less fatiguing than when each nail is raised by the hand and held until driven.

handle of the nail-driver, as is shown in Fig. (5, is designed to guide the same over the laths, the spurs being arranged to fall into the interstices between them.

The workman is provided with a harness adapted to receive a number of magazines, so that when one has been discharged he can, with very little less of time, remove it and replace it by a charged magazine from the harness, the discharged magazine being returned to the hauness in the place of the one taken from it. 7

Figs. 12, 13, ll, 15, 16, and 17 of the drawingsrepresentone of the modified forms which myimprovement may assume. Differentiated with the nail-driver heretofore described, the essential differences inv the modified devices are the stationary driver and the application of centrifugal force to feed the nails from the magazines. .The hollow handle A, which is adapted to receive one of the magazines 0, before described, is provided with a pivotal looking device, B, for securing the same in position, and with two uprightbloeks, O, for holding the forward open end of the magazine in appropriate adjustment relative to the slots D" and E, formed in the rear wall of the head of the driver, the slot D' being designed to permit the shanks of the nails to enter the head of the driver, while the slot E admits the heads of the nails therewithin. The inner face of the rear wall of the driver is pro vided with a recess, F, in which. the separator G" has lateral reciprocation. The said separator, which receives the two guides H", pro jecting from the wall of the driver, is provided with two spurs, I" J, located in different planes, the outer face of the spur J" being inclined, and with an arm K, which engages with the inclined arm I of the two-armed lever lYl", pivotally secured to one side of the sliding shell N". The inner face of the arm K is adapted to engage with the said inclined arlnL' and move it into the position indicated by the dotted lines in the drawings. The said arm L is restored into a condition of readiness to engage with the arm K* and raise the separator to its normal position by a pin, 0*, which engages with the arm 1 of the lever M. The separator is also provided with an inclined face, Q, which is designed to allow a sufficient movement of the head of the nail foremost of the line to permit its shank to be thrown forward by the centrifugal force due to swinging the nail-driver when using it. The separator is moved inwardly from its normal condition, in which its spur 1* is in front ofthe slot D, by the spring R", which impinges upon the outer face of the arm K, before alluded to. As the foremost nail enters the chambered interior of the head of the nail-driver it is pre vented from rising therein by the two lugs S, between which lies a slot, T, designed to receive the spring-arm U, attached to one side of the sliding shell N, the function of the said arm being to assist in placing the by a sprin driven.

foremost nail under the driver N and iii position to be driven by engaging with the head of the nail.

The spring-arm X*, which is associated with the spring-arm U, is designed also to assist in placing the foremost nail in position to be driven, its particular function being to engage with the shank of the nail and prevent it from being deflected rearwardly. The said shell V is. maintained in its normal position, in which it is shown in Fig. 14 of the drawings, ,,Y*, which is located in a recess formed in Fhe front face of the driver W the lower end of the spring being engaged with a lug, Z", projecting through the outer face of the said shell. When a blow is struck with the nail-driver, this spring is compressed, and the shell assumes the position in which it is shown by dotted lines in Fig. 12 of the drawings. An incline, A, secured to one side of the driver-head, is arranged to engage with an arm, B connected with both of the spring- 'arms U and X when the shell is in normal position, and to elevate the said arms out of the chambered interior of the driver-head'until, when the shell has reached the upward limit of its sliding movement, the arm (3 is released from the said incline, permitting the springarms to enter the interior of the driver-head and engage with the nail separated from the line and introduced thereinto by the last action of the separator, which occurred during the last upward movement of the shell.

A spring secured to the lower face of the shell h is designed to reduce the shock consequent upon striking a heavy blow with the nail-driver. Supposing, now, that the lower face of the shell has been released from engagement with the object it struck in being raised to its elevated position, the spring T will immediately restore it to its normal positi on, and inasmuch as the spring-arms attached to'it have justbeen engaged with a nail, the same will be carried to the position below the end of the driver WV. In striking another blow with the nail-driver, the nail will be thrown by centrifugal force forward and under the end of the driver XV, by which it will be Springs E and F appropriately arranged, project into the chambered interior ofthe shell, the upper set serving to hold the nail by its head until the driver descends upon it, and both sets serving to guide the nail until it is driven. A spring, G fulfills the function of preventing the extreme lower end of the nail from being thrown too far forward by centrifugal force, tending to carry the point of the nail to the front wall of the shell. Inasmuch as centrifugal. force is depended upon to feed the nails forward, the toothedbar and its springconnections need not be used in connection with themodified form of nail-driver, and such features of the feeding device may be omitted or the toothed bar may be elevated out of the range of the heads of the nails.

Having described the modification of my nail-driver in detail, I will now proceed to briefly describe its modes opercmdi.

, A charged nail-magazine is introduced into the handle of the driver, which is then swung as an ordinary hammer is in striking a blow. This movement will throw the foremost nail forward, causing it to enter the chambered interior of the head of the nail-dri ver until barred by the spur I of the separator G. When the shell V strikes the lath the first part of its sliding ascent causes a disengagement of the arm K from the inclined arm L, permitting the spring Q to move the separator inwardly, thus removing the spur 1* thereof from its nor mal position in front of the slot D, in which position it bars the foremost nail of the line fronrentering the chambered interior of the shell. Simultaneously with the removal of the spur I from its position, thespnr J of the separator will be interjected the foremostnail and the one contiguous to it, the foremost nail being moved forward into the interior of the driver-head, by the combined action of the inclined face of the spur J", and by the centrifugal force due to the swinging movement imparted to the hammer in weilding it. As the shell nears the termination of its sliding ascent on the driver the spring-arms U" and X*, which, during the first portion of the ascent of the shell, have been lifted out of the interior of the driver-head, in order to permit the entrance of the foremost nail thereinto by the incline A, are now disengaged therefrom and sprung into the shell, the spring U entering above the head of the nail, while the spring X" passes behind its shank. During the sliding ascent of the shell, as above described, the nail already in the driver-head has been driven, and now as the driver is lifted from the lath the spring Y will restore the shell to its normal position, in which it is shown in Fig. 15 of the drawings, and as the shell, descends, carrying with it the spring U" and X, the nail introduced into the driver-head by the last sliding ascent of the shell will be moved downward and placed in a position of readiness to be carried completely under the head of the driver by the centrifugal force derived from the next blow of the instrument. The arm B con nected with the springarms U and U", after being disengaged from the upper end of the incline A, is carried by the sliding descent of the shell under the said incline, being left at the termination-of the sliding descent of the shell in position to rise on the incline the next time the shell ascends.- The inclined arm L of the two-armed lever M, having been re stored to its normal position by thepin Otis,

the shell,carried under the arm K of the separator, which it elevates to its normal position, in which the spur 1* again bars the advance of the foremost nail of the line. It will thus be Seen that every blow-of the driver not only drives the nail introduced into it by the'pre 1 25 near the termination of the sliding descent of ceding blow, but also effects the introduction of another nail into the driver, every blow of which drives a nail, except the first blow.

It is apparent that a system of levers or devices may be easily attached to the nail-driver to transmit the motion imparted to the driver to the feeding devices, thereby actuating them,

I as required, without the intervention of the hand, and making their action completely automatic.

The magazines are shown as portable; but, if desired, they may be immovably secured in the charging-case, and when charged the nails inthem may be deflected in serial order into the hollow handle of a nail-driver or other suitable receptacle.

In conforming my invention to the oscillation of the ordinary practical conditions, it is apparent that many changes in the devices described may be necessary. I would there fore have it understood that I do not limit myself to the exact construction shown and described, but that I hold myself at liberty to make such slight changes and alterations as fairly fall within the spirit and scope of my invention.

As before stated, the charging devices are not claimed in this case; but I would have it understood thatI reserve the right to make such devices the subject-matter of another application.

Having fully described my invention, what I claim as new, and desire to secure by Letters Patent, is

1. The combination,with a portable machine for driving nails, of interch an geabl e nail-magazines and feeding devices adapted to be removably secured to the tops of the magazines, and consisting, essentially, of bars provided with teeth at intervals, substantially as set forth.

2. The combinati on ,with a portable machine for driving nails, ofinterehangeabl e nail -magazines and feeding devices adapted to be re movably secured'to the tops of the magazines, and consisting essentially, of caps inclosing toothed bars, inv combination with devices to actuate the bars, substantially as set forth.

3. The combination,with a portablcmachine for drivingnails, ofinterchangeable nail-maga zines and the interchangeable feeding devices provided with stirrup-shaped springs to engage with the fianged upper edges of the magazines, substantially as set forth.

4. The combination,with a portable machine for driving nails, said machine being provided with a hollow handle, J', of nail-magazines adapted to be interchangeably introduced into and inclosed by the hollow handle of the ma chine, substantially as set forth.

5. In a machine for driving nails, the combination, with. a chambered head and a driver, of normally-interlocked j aws pivoted in a plane horizontal. to the driver, and operating during its ascent to surround and separate the foreactuated b the driver and ase )arator actuated by the jaws and co-operating with them to separate the foremost nail. from a line of nails, the said jaws being adapted to move the separated nail under the driver, to hold it in position until the same descends, and to hold the' remaining nails in forth.

7. In a machine for driving nails, the combination, with a chambered head and a driver, of the reciprocating separator located within the said head, and provided with a slot to receive the upper ends of the nails, and with a spur extending partially across the slot, substantially as set forth.

8. In a machine for driving nails, the com.- bination, with the driver, of devices to feed nails under it, and the pivotcl guide B for guiding the nails while being driven, said de vice being normally located under the driver and arranged to be gradually displaced thereby as it descends and drives the nail, substantially as set forth.

I 9. In a portable machine for driving nails,

place, substantially as set the combination, with a nail-receptacle, of a chambered driver-head in which the driver is located, said head being provided with a slot opening into the nail-receptacle, and with one or more inclined faces located at the top of the slot and arranged to engage with the heads of the nails, whereby their shanks are deflected forward, substantially as set forth.

10. The combination, with a portable machine for driving nails, of an auxiliary attachment to operate it when used for overhead work, and consisting of a tube, a plunger located within it, and a spring to actuate the plunger, substantially as set forth.

11. The combination, with a portable machine for driving nails, of an auxiliary attachment consisting of an adjustable tube, a spri 11 actuated plunger, and an adjustable catch to hold the plunger against the projectile force of the spring, substantially as set forth.

12. The combination, with a portable machine for driving nails automatically fed under its driver, of a revolving spur-wheel or guide pivoted to the machine, and provided with three or more spurs equidistant from. each other and adapted to enter the interstices be tween the laths, substantially as set'forth.

In testimony whereof I have signed this specification. in. the presence of two subscribing witnesses;

STUART PERRY.

\Vi tn esses:

G120. H. THOMAS, DANIEL P. \Voos'rER. 

